12120122012100 has 144 divisors (see below), whose sum is σ = 35115593083200. Its totient is φ = 3227607326720.

The previous prime is 12120122012081. The next prime is 12120122012161. The reversal of 12120122012100 is 121022102121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12120122012100.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1177963756 + ... + 1177974044.

It is an arithmetic number, because the mean of its divisors is an integer number (243858285300).

Almost surely, 2^{12120122012100} is an apocalyptic number.

12120122012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120122012100 is an abundant number, since it is smaller than the sum of its proper divisors (22995471071100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12120122012100 is a wasteful number, since it uses less digits than its factorization.

12120122012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15302 (or 15295 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12120122012100 its reverse (121022102121), we get a palindrome (12241144114221).

The spelling of 12120122012100 in words is "twelve trillion, one hundred twenty billion, one hundred twenty-two million, twelve thousand, one hundred".